umputun / agterm / 33599019446

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push

github

Committed by web-flow

Commit Message

feat(zmx): attach a session running on another Mac (#524)

Adds two control commands. `zmx tree [HOST]` lists the sessions that can be
attached to, across every open window; `zmx attach HOST SESSION` opens one of
them here, split included, marked remote in the sidebar. Each attach imports one
session; whole-workspace teleport is out of scope.

The host is optional, and that is the whole design. Bare, `zmx tree` builds this
app's own attachable sessions from one walk of its open stores. With a host, it
sshes once and runs that same bare form on the far side, which answers with a
single already-joined document. So the far-side operation is an ordinary public
command a user can run and test on its own, there is no second internal-export
noun, and nothing is composed across two remote calls.

A remote pane is an ordinary command surface whose command is ssh. There is no
new surface kind and no remote daemon ownership: closing locally ends this side's
connection and the far-side processes keep running. `Session.remoteHost` is
immutable and set at construction, since `addSession` saves and a marker written
afterwards would let one snapshot reach disk carrying the ssh command.
`locallyManagedPaneIdentities` is the single ownership predicate, empty for a
remote session, so no local claim is invented for a daemon on another machine.

Rows are flat and carry windowID/windowName and workspaceID/workspaceName beside
the session's own id and name: show the names, group by the ids, because neither
rename path nor addWorkspace enforces uniqueness, so two windows called `main`
and a `dev` workspace in each are ordinary and grouping by name merges them. Each
row also carries the session's context and per-pane foreground, so a picker can
say what it is about to attach to without a second ssh.

A session is offered only when its store reports backedByZmx and every pane
resolves to a claimed, running daemon under an agterm name. These are eligibility
rules rather than ra... (continued)

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